/* 身岸 inaba.shore — 身體地圖／解剖互動頁共用樣式
   色彩、字體、導覽列、頁尾與官網其他頁面一致 */
:root{
  --paper:#F6F3EE; --sand:#DDD6CD; --sage:#AAB2A1; --moss:#8E9A8F; --mist:#C7CFD8;
  --violet:#B6B0BF; --violet-text:#6F6480; --ink:#4A4A48; --ink-deep:#3B3B39;
  --text:#585856; --muted:#6D6D6A; --white:#fbfaf7;
  --line:rgba(74,74,72,.14);
  --serif:"Noto Serif TC","Songti TC","PMingLiU","Times New Roman",serif;
  --serif-en:"Cormorant Garamond","Noto Serif TC",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang TC","Noto Sans TC","Microsoft JhengHei",sans-serif;
  /* 解剖圖用色 */
  --bone:#EDE7DE; --bone-2:#E5DDD2; --bone-3:#DCD2C5; --bone-line:rgba(74,74,72,.42);
  --hollow:#9C958C; --muscle:#C49A8C; --muscle-line:#9E7467; --pick:#AAB2A1; --pick-line:#5F6B60;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.85;letter-spacing:.015em}
.shore-bg{position:fixed;inset:0;z-index:-1;background-color:var(--paper);background-image:url("assets/texture-base.svg");background-repeat:no-repeat;background-position:center;background-size:cover;pointer-events:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}

/* Navigation */
.site-nav{position:sticky;top:0;z-index:20;background:rgba(246,243,238,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1120px;margin:auto;padding:12px 22px;display:flex;align-items:center;gap:28px}
.brand-mini{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:20px;letter-spacing:.06em;white-space:nowrap}
.brand-logo-nav{width:32px;height:32px;border-radius:50%;object-fit:cover;flex-shrink:0;box-shadow:0 2px 8px rgba(74,74,72,.08)}
.brand-mini .brand-en{font-family:var(--serif-en);font-size:13px;letter-spacing:.16em;margin-left:4px;color:var(--muted)}
.nav-links{display:flex;gap:20px;overflow:auto;white-space:nowrap;font-size:13px;color:var(--muted);scrollbar-width:none}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--ink)}
.nav-cta{margin-left:auto;padding:8px 16px;border:1px solid var(--ink);border-radius:999px;font-size:12px;white-space:nowrap;transition:.2s ease}
.nav-cta:hover{background:var(--ink);color:var(--paper)}

/* Hero */
.page-hero{padding:56px 22px 34px;position:relative;overflow:hidden}
.page-hero-inner{position:relative;z-index:1;max-width:1040px;margin:auto}
.page-hero-bg{position:absolute;inset:0;z-index:0;width:100%;height:100%;pointer-events:none}
.crumbs{font-size:12.5px;color:var(--muted);margin-bottom:18px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumbs a{text-decoration:underline;text-underline-offset:3px}
.crumbs a:hover{color:var(--ink)}
.kicker{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.45;margin:0}
h1{font-size:clamp(30px,3.8vw,46px);letter-spacing:.03em;text-wrap:balance}
.hero-en{font-family:var(--serif-en);font-style:italic;color:var(--violet-text);font-size:17px;letter-spacing:.03em;margin-top:8px}
.hero-copy{max-width:680px;color:var(--text);font-size:15px;line-height:1.9;margin-top:22px;text-wrap:pretty}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-stats span{font-size:12.5px;color:var(--text);padding:5px 14px;border-radius:999px;background:rgba(255,255,255,.55);border:1px solid var(--line)}
.hero-stats b{font-family:var(--serif);font-weight:500;font-size:15px;color:var(--ink);margin-left:4px}

/* Sections */
main{overflow:hidden}
section{scroll-margin-top:90px}
.section{padding:64px 22px;border-top:1px solid var(--line)}
.section-inner{max-width:1040px;margin:auto}
.section-head{display:grid;grid-template-columns:180px 1fr;gap:45px;margin-bottom:36px}
.section-no{font-family:var(--serif);font-style:italic;color:var(--muted);font-size:13px;letter-spacing:.14em;padding-top:9px}
h2{font-size:clamp(26px,3.4vw,38px);letter-spacing:.025em}
.lead{font-family:var(--serif);font-size:18px;line-height:1.9;color:var(--ink);max-width:760px;margin-top:12px}
.body-copy{max-width:760px;color:var(--text);font-size:14.5px;line-height:1.95}
.body-copy p{margin:0 0 1.1em}
.body-copy p:last-child{margin-bottom:0}
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card-grid.three{grid-template-columns:repeat(3,1fr)}
.card{padding:26px;background:rgba(255,255,255,.36);border:1px solid var(--line);border-radius:22px}
.card .num{font-family:var(--serif);font-style:italic;color:var(--violet-text);font-size:13px;margin-bottom:10px}
.card h3{font-size:20px;margin-bottom:8px}
.card p{font-size:13.8px;color:var(--text);margin:0;line-height:1.85}
.disclaimer{margin:28px 0 0;border-left:3px solid var(--sage);padding:16px 20px;background:rgba(170,178,161,.13);font-size:13px;color:var(--text);line-height:1.8;max-width:820px}
.services-more-link{display:inline-block;font-size:12.5px;color:var(--ink);border-bottom:1px solid currentColor;padding-bottom:2px;line-height:1.5}
.cross-links{max-width:820px;margin-top:18px;display:flex;flex-wrap:wrap;gap:10px 20px}

/* ===== Explorer ===== */
.explorer{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:36px;align-items:start}
.controls{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center;margin-bottom:16px}
.seg{display:inline-flex;padding:3px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.5)}
.seg button{border:0;background:transparent;padding:7px 15px;border-radius:999px;font-size:13px;letter-spacing:.04em;color:var(--muted);cursor:pointer;transition:.2s ease;white-space:nowrap}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.seg-label{font-size:11.5px;letter-spacing:.16em;color:var(--muted);margin-right:4px}
.figure-wrap{position:relative;background:rgba(255,255,255,.38);border:1px solid var(--line);border-radius:22px;padding:10px;overflow:hidden}
.figure-wrap svg{display:block;width:100%;height:auto;touch-action:manipulation}
.figure-caption{display:flex;justify-content:space-between;gap:12px;font-size:11.5px;color:var(--muted);padding:6px 10px 2px;line-height:1.6}
.figure-msg{position:absolute;left:50%;top:18px;transform:translateX(-50%);background:rgba(74,74,72,.88);color:var(--paper);font-size:12.5px;padding:6px 14px;border-radius:999px;white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .2s ease}
.figure-msg.show{opacity:1}
.tip{position:absolute;pointer-events:none;background:var(--ink);color:var(--paper);font-size:12.5px;padding:4px 10px;border-radius:999px;white-space:nowrap;opacity:0;transform:translate(-50%,-140%);transition:opacity .12s ease;z-index:3}
.tip.show{opacity:1}

.part{cursor:pointer;transition:fill .18s ease,opacity .18s ease,stroke .18s ease,fill-opacity .18s ease}
.bone{fill:var(--bone);stroke:var(--bone-line);stroke-width:1.1;stroke-linejoin:round}
.bone.t2{fill:var(--bone-2)} .bone.t3{fill:var(--bone-3)}
.bone.cart{fill:#E9EEF0;stroke:rgba(74,74,72,.35)}
.bone:hover{fill:#F4EFE8}
.deco{pointer-events:none}
.hollow{fill:var(--hollow);opacity:.55;stroke:var(--bone-line);stroke-width:1}
.deep{fill:#CFC6BA;opacity:.6}
.skin{fill:var(--sand);opacity:.32}
.ghost{fill:none;stroke:rgba(74,74,72,.28);stroke-width:1.2;stroke-dasharray:3 4}
.ridge{fill:none;stroke:rgba(74,74,72,.45);stroke-width:1.2;stroke-linecap:round}
.tooth{fill:#FAF8F4;stroke:rgba(74,74,72,.35);stroke-width:.8}
.fig-label{font-family:var(--serif);font-size:17px;fill:var(--violet-text);letter-spacing:.06em}
.muscle{fill:var(--muscle);fill-opacity:.62;stroke:var(--muscle-line);stroke-width:1;stroke-opacity:.7;fill-rule:evenodd}
.muscle.fascia{fill:#D8C3B8;fill-opacity:.55;stroke-dasharray:4 3}
.muscle:hover{fill-opacity:.8}
svg[data-layer]:not([data-layer="bone"]) .bone{opacity:.62}
svg[data-layer]:not([data-layer="bone"]) .bone.is-related,svg[data-layer]:not([data-layer="bone"]) .bone.is-selected{opacity:1}
.bone.is-related{fill:#D3D9CC;stroke:var(--pick-line);stroke-width:1.4}
.bone.is-selected{fill:var(--pick);stroke:var(--pick-line);stroke-width:1.8}
.muscle.is-related{fill-opacity:.85;stroke:var(--ink);stroke-width:1.4}
.muscle.is-selected{fill:#B07E6F;fill-opacity:.92;stroke:var(--ink-deep);stroke-width:2}
svg.has-selection .muscle:not(.is-selected):not(.is-related){fill-opacity:.3}

/* Info card */
.info{position:sticky;top:86px;background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:22px;padding:28px 28px 24px;min-height:320px}
.info-kicker{font-size:11.5px;letter-spacing:.18em;color:var(--violet-text);margin-bottom:8px}
.info h3{font-size:26px;color:var(--ink);letter-spacing:.03em}
.info .en{font-family:var(--serif-en);font-style:italic;color:var(--muted);font-size:16px;margin-top:2px}
.info .desc{font-size:14.2px;color:var(--text);line-height:1.9;margin:14px 0 0}
.info dl{margin:16px 0 0;display:grid;gap:10px}
.info dl div{padding:12px 14px;border-radius:14px;background:rgba(170,178,161,.13);border:1px solid rgba(170,178,161,.3)}
.info dt{font-size:11.5px;letter-spacing:.14em;color:var(--muted);margin-bottom:2px}
.info dd{margin:0;font-size:13.8px;color:var(--text);line-height:1.8}
.info .note{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.7;border-top:1px dashed var(--line);padding-top:12px}
.info .note button{border:0;background:none;padding:0;text-decoration:underline;text-underline-offset:3px;cursor:pointer;color:var(--ink);font-size:12.5px}
.rel{margin-top:16px}
.rel-title{font-size:11.5px;letter-spacing:.14em;color:var(--muted);margin-bottom:8px}
.info-empty p{font-size:14px;color:var(--text);line-height:1.9;margin:12px 0 0}
.info-empty ol{margin:14px 0 0;padding-left:1.2em;font-size:13.5px;color:var(--text);line-height:1.9}

.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-block;border:1px solid var(--line);background:rgba(255,255,255,.6);border-radius:999px;padding:5px 13px;font-size:13px;cursor:pointer;color:var(--text);transition:.18s ease;line-height:1.6}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.m{background:rgba(196,154,140,.14);border-color:rgba(158,116,103,.3)}
.chip.out{border-style:dashed}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.chip small{font-size:11px;opacity:.75;margin-left:3px}
.index{margin-top:40px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 36px}
.index-group h3{font-size:16px;margin-bottom:10px;color:var(--ink);display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.index-group h3 span{font-family:var(--sans);font-size:12px;color:var(--muted);letter-spacing:.06em}

/* Region pager */
.pager{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;max-width:1040px;margin:0 auto}
.pager a{flex:1 1 220px;padding:18px 22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.4);transition:.2s ease}
.pager a:hover{border-color:var(--ink)}
.pager small{display:block;font-size:11.5px;letter-spacing:.14em;color:var(--muted)}
.pager span{font-family:var(--serif);font-size:18px}
.pager a.next{text-align:right}

/* Footer */
footer{padding:46px 22px 60px;border-top:1px solid var(--line)}
.footer-inner{max-width:1040px;margin:auto;display:flex;justify-content:space-between;gap:36px;align-items:flex-start;flex-wrap:wrap}
.footer-brand{font-family:var(--serif);font-size:26px}
.footer-brand .brand-en-inline{font-family:var(--serif-en)}
.footer-tag{font-family:var(--serif-en);font-style:italic;color:var(--muted);margin-top:3px;font-size:14px}
.footer-socials{margin-top:8px;display:flex;gap:14px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.footer-socials a,.footer-sitemap a,.footer-legal a{text-decoration:underline;text-underline-offset:3px}
.footer-sitemap{font-size:12px;color:var(--muted)}
.footer-sitemap-title{font-family:var(--serif);font-style:italic;margin-bottom:10px;font-size:12px;letter-spacing:.08em}
.footer-sitemap ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-note{width:100%;max-width:640px;margin:8px auto 0;font-size:11.5px;color:var(--muted);text-align:center;line-height:1.75}
.footer-copyright{width:100%;text-align:center;margin-top:12px;font-size:12px;color:var(--muted)}
.footer-legal{width:100%;margin-top:8px;padding-top:20px;border-top:1px solid var(--line);text-align:center;font-size:12px;color:var(--muted)}

@media (max-width:860px){
  .nav-cta{display:none}
  .section{padding:52px 20px}
  .section-head{grid-template-columns:1fr;gap:8px;margin-bottom:24px}
  .section-no{padding:0}
  .explorer{grid-template-columns:1fr;gap:18px}
  .info{position:static;min-height:0}
  .index{grid-template-columns:1fr}
  .card-grid,.card-grid.three{grid-template-columns:1fr}
  .footer-inner{flex-direction:column;gap:24px}
  .footer-note{text-align:left}
}
@media (max-width:520px){
  .nav-inner{padding:10px 14px;gap:14px}
  .brand-mini .brand-en{display:none}
  h1{font-size:28px}
  .page-hero{padding:40px 16px 26px}
  .section{padding:44px 16px}
  .info{padding:22px 20px}
  .figure-wrap{padding:4px;border-radius:18px}
  .seg button{padding:7px 11px;font-size:12.5px}
  .card{padding:22px 20px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}